Show me something eternal
I don’t thinkit’s similar to volc. Volc is more about finding the one safe turn to get going, and due to frailty and sr weakness one turn is too often all it has. Meta uses its bulk/typing, which are fantastic, to switch in more often and start breaking things down for other mons. It can only truly sweep if things have been weakened for it. It also has tools outside of attacking with its broad coverage. Fairly strong Priority in Bullet Punch, SR and some even use Pursuit.I think this actually work against Meta. No matter what you choose, it's going to be hardwalled by something which requires extra team support. It's kind of similar to why Volcarona is only A; you'd think being able to run a billion Z moves would make it more viable, but no matter what you choose it's going to lose to something. Both Meta and Volc can either 3-0 a team or be useless in a game. I don't see Meta as being as viable as say the Zards or Gyara, just like Volc isn't a splashable as Gren or Naga.
It’s much more of a team player than many other mega or offensive mons. And being able to pick and choose what role it performs and what mons it uses that extra bit of coverage to dismantle really plays into that.
I genuinely think Meta is a top3 mega alongside Mence and Gengar (side note: M-Blaze down from S please).